§ 1622. Speed limits on county roads and town highways. The department
of transportation upon the request of the county superintendent of
highways of a county and the town board of the town or towns affected
with respect to county roads and town highways in such town or towns
outside of cities or villages, may by order, rule or regulation:

1. Establish maximum speed limits at which vehicles may proceed on or
along such highways higher or lower than the fifty-five miles per hour
statutory maximum speed limit. No such limit shall be established at
less than twenty-five miles per hour, except that school speed limits
may be established at not less than fifteen miles per hour, for a
distance not to exceed one thousand three hundred twenty feet, on a
highway passing a school building, entrance or exit of a school abutting
on the highway.

2. Establish maximum speed limits at which vehicles may proceed on or
along all such highways lying within an area or areas as designated by a
description of the boundaries of such area or areas submitted by the
county superintendent of highways of a county and the town board of the
town or towns affected lower than fifty-five miles per hour statutory
maximum speed limit. No such limit shall be established at less than
thirty miles per hour.